When comparing Pyramid vs Yesod, the Slant community recommends Yesod for most people. In the question“What are the best backend web frameworks?” Yesod is ranked 12th while Pyramid is ranked 15th. The most important reason people chose Yesod is:
While not required, Yesod offers templating through a Shakespearean family of languages to produce page code.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Very flexible
Pyramid can be used for creating small applications quickly and easily, but it also powers up large enterprise-scale applications such as Dropbox.
Pro Persistence agnostic
Either NoSQL and SQL (including SQLAlchemy plugin).
Pro Comes with security included
Includes authorization and authentication with multiple backends.
Pro Offers templating for type-safe, well-formed content
While not required, Yesod offers templating through a Shakespearean family of languages to produce page code.
Pro Uses type-safe URLs
Ensures that data provided by the URL is type-safe. This means that data in the URL has a definitive type.
Pro Can be used without knowing much Haskell
While Yesod is written in Haskell, developers can achieve basic functionality without much investment in the language.
Cons
Con The great number of options it offers can become intimidating
One of Pyramid's greatest drawbacks is that it requires a lot of set up in the beginning of a project. This can feel overwhelming and can keep people away from using it.
Con Is hard to customize
Learning how Yesod works internally is hard. It is a large framework with complicated components. Finding the appropriate code and understanding how it contributes to the framework is difficult, meaning developers will struggle.
Con Too much template haskell
You actually want to code in haskell and not some DSL with "magic" hidden under the bonnet.
